The technical skills do not come with a guarantee of trial by jury. It seems that anyone with this technology can target any subject and watch, track, or eliminate the individual on a whim. Who has the right to use such a weapon?
Of course, the same question applies to a hand gun, a long range rifle, or a shotgun. We have put limits on the right of individuals to invade the privacy of others or to assault them, or to make a mortal threat against them. This technology carries a moral responsibility with it--we must not attack others without due course of the law. We sometimes claim self defense. That seems to be a justifiable cause to use deadly force, but what court or authority allows the use of this equipment against individuals? How is this enforced?
The FAA is the body now charged with making the rules by 2015. Ah, yes, it just gets curiouser and curiouser. Apparently nobody is concerned about it yet, even though the technology is for sale now.